单向交通公路隧道内空气温度场分析  

Analysis of Air Temperature Field inside Highway Tunnel of One-way Traffic

作　　者：史小丽[1] 田伟[2,3] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]河北工业大学土木工程学院,天津300130 [3]保定市交通局,河北保定071001

出　　处：《河北工业大学学报》2010年第1期112-115,共4页Journal of Hebei University of Technology

基　　金：河北省交通科技项目(Y-060249)

摘　　要：为确定公路隧道内路面结构温度变化规律,提供隧道路面工作环境温度指标,利用有限元方法对隧道空气温度分布状况进行预估.结果表明长、短公路隧道中部空气温度呈现出不同分布状态:短隧道中部空气温度受洞外气温影响较大,表现出与洞外相同的变化趋势;采用纵向机械通风的长隧道中部空气温度一年中趋于稳定;隧道进出口处温度受洞外空气状况影响强烈.分析结果能够为隧道内路面结构设计和材料选择提供理论依据和指导作用.In order to define pavement temperature field distribution inside highway tunnels and offer temperature index of pavement working environment, the finite element method （FEM） was developed to calculate the temperature field of air in highway tunnel. The result shows different regularities： air temperature in the middle ＆the short tunnel is affected strongly and represents the uniform trend as the outside tunnel, but that of the long tunnel equipped with lognitudinal ventilator is a fixed value. Otherwise the air in import and export of the tunnel changes evidently. The results can offer theoretical basis for pavement design and materials selection in tunnels.

关 键 词：公路隧道 空气温度 温度场 有限元法 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]